From mboxrd@z Thu Jan  1 00:00:00 1970
From: Kevin Wolf <kwolf@suse.de>
Subject: Re: [PATCH] Use qemu_memalign instead of qemu_malloc
Date: Wed, 25 Jun 2008 17:14:08 +0200
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Cc: Anthony Liguori <aliguori@us.ibm.com>, kvm@vger.kernel.org
To: Laurent Vivier <Laurent.Vivier@bull.net>
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Laurent Vivier schrieb:
> Generally EINVAL with O_DIRECT opened files means there is an alignment
> problem with offset, buffer address or size to read (must be multiple of
> 512).

Apparently the qemu_memalign for the buffer helps, so it's the buffer
address in this case.

Kevin